68100072 has 16 divisors (see below), whose sum is σ = 170250240. Its totient is φ = 22700016.

The previous prime is 68100061. The next prime is 68100077. The reversal of 68100072 is 27000186.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2837503 = 68100072 / (6 + 8 + 1 + 0 + 0 + 0 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (68100077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418728 + ... + 1418775.

It is an arithmetic number, because the mean of its divisors is an integer number (10640640).

Almost surely, 2^68100072 is an apocalyptic number.

It is an amenable number.

68100072 is an abundant number, since it is smaller than the sum of its proper divisors (102150168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68100072 is a wasteful number, since it uses less digits than its factorization.

68100072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837512 (or 2837508 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 68100072 is about 8252.2767767447. The cubic root of 68100072 is about 408.3656372426.

The spelling of 68100072 in words is "sixty-eight million, one hundred thousand, seventy-two".